ZETA Dehumidifiers VS. PRO Dehumidifiers

Similarities of ZETA and PRO dehumidifiers

Preair ZETA and PRO dehumidifiers are ceiling mounted machines for industrial use (except PRO165). A ceiling-mounted industrial dehumidifier is a specialized dehumidification system designed for large commercial or industrial spaces where excess humidity can be a problem. These units are typically installed on the ceiling to maximize floor space and to ensure even distribution of dry air throughout the area. These units are designed to provide efficient airflow and circulation of dry air throughout the space. Proper placement and ducting may be necessary to ensure even dehumidification. Generally, those dehumidifiers can play an important role in greenhouses, basements, crawl spaces, swimming pools, warehouses, food industry, pharmaceutical industry, and so on.

If customers are unsure how to choose these two dehumidifiers, Preair suggests focus on their differences. Compare the characteristics of the two models of machines with your own needs to select a more suitable machine.

Differences between ZETA and PRO Dehumidifiers

Difference in Power

The power of the ZETA dehumidifier is 380V/50Hz, while the power of the PRO dehumidifier is 230V/60HZ. It is important to buy dehumidifiers that comply with local electricity standards to ensure the use of electricity safely.

Difference in filter

The filter screen of the ZETA dehumidifier is Nylon, while the PRO dehumidifier is MERV11. The nylon filter is easy to detach and clean. It is cost-saving but has an insufficient effect. On the contrary, the MERV11 filter has a good effect that is capable of removing a wide range of particles from the air, including common allergens like pollen, pet dander, mold spores, and dust mites. The only drawback is that its cost will be higher than nylon’s. If the working environment of the dehumidifier is harsh, the MERV11 filter needs to be replaced every few months.

Difference in capacity

The ZETA series dehumidifiers include the ZETA145 (145L/day, @30℃/80%RH), ZETA240 (240L/day, @30℃/80%RH), ZETA480 (480L/day, @30℃/80%RH).

The PRO series dehumidifiers have several models, that is, the PRO165 (165PPD, @26.7℃/60%RH, cart-shape), PRO230 (230PPD, @26.7℃/60%RH), PRO300 (300PPD, @26.7℃/60%RH), PRO330 (330PPD, @26.7℃/60%RH), PRO500 (500PPD, @26.7℃/60%RH), PRO500N (500PPD, @26.7℃/60%RH).

When choosing a ceiling-mounted industrial dehumidifier, it's important to assess the specific requirements of your space, including its size, moisture levels, and any unique environmental conditions.

Data comparisons between ZETA and PRO Dehumidifiers  

ZETA145 VS. PRO165
ZETA240 VS. PRO230
ZETA480 VS. PRO500
ZETA145 VS. PRO165
NO. ZETA145 (ceiling-mounted) PRO165  (cart-shape)
Power 220V/50Hz 115V/60HZ
Rated Current (A) 7 9.7
Rated Power (W) 1530 1068
Energy Efficiency (L/kWh) 2.31 2.95
Dehumidification Capacity (30℃80%RH) 145L/day 265PPD
Dehumidification Capacity (26.7℃60%RH) 85L/day 165PPD
Dehumidification Capacity (32℃/90%RH) 160L/day 300PPD
Functioning Temperature Range 5℃-38℃ 5℃-35℃
Functioning Humidity Range 10%-90%RH 30%RH-90%RH
Commercial Use Greenhouse, basement, pharmaceutical industry, food industry, indoor swimming pool, etc. Grow room, basement, workshop, indoor pool room, home, office, etc.
Refrigerant R410A R410
Filter Screen Nylon SUS304
Drainage Method 3/4NPT direct drainage Water pump
Fuselage Structure Sheet metal shell (ceiling mounted) Sheet metal shell (hand push)
Display Board LCD LCD
External Control / /
APP Yes Yes
WIFI Yes Yes
Timing Yes Yes
Dim (L x W x H) 872*598*436mm 663*639*1067mm
Net Weight 62.5Kg 74kg
20 Square Cabinets 80 24
40 High Cabinet 164 96
40 Square Cabinets 164 48
ZETA240 VS. PRO230
NO. ZETA240 PRO230
Power 380V/50Hz 230V/60HZ
Rated Current (A) 5.5 6.7
Rated Power (W) 2900 1530
Energy Efficiency (L/kWh) 2.11 2.56
Dehumidification Capacity (30℃80%RH) 240L/day 350PPD
Dehumidification Capacity (26.7℃60%RH) 150L/day 230PPD
Dehumidification Capacity (32℃/90%RH) 300L/day 500PPD
Functioning Temperature Range 5℃-38℃ 5℃-35℃
Functioning Humidity Range 10%-90%RH 20%-85%RH
Commercial Use Greenhouse, basement, pharmaceutical industry, food industry, indoor swimming pool, etc. Greenhouse, basement, pharmaceutical industry, food industry, indoor swimming pool, etc.
Refrigerant R410A R410A
Filter Screen Nylon MERV11
Drainage Method 3/4NPT direct drainage 3/4NPT direct drainage
Fuselage Structure Sheet metal shell (ceiling mounted) Sheet metal shell (ceiling mounted)
Display Board LCD LCD
External control / Model-bus
APP Yes Yes
WIFI Yes Yes
Timing Yes Yes
Dim (L x W x H) 1040*780*858mm 815*520*510mm
Net weight 119.5Kg 64kg
20 square cabinets 28 63
40 high cabinet 84 126
40 square cabinets 56 126
ZETA480 VS. PRO500
NO. ZETA480 PRO500
Power 380V/50Hz 230V/60Hz
Rated Current (A) 11 13.3
Rated Power (W) 6000 2900
Energy Efficiency (L/kWh) 4.24 3.4
Dehumidification Capacity (30℃80%RH) 480L/day 800PPD
Dehumidification Capacity (26.7℃60%RH) / 500PPD
Dehumidification Capacity (32℃/90%RH) / 950PPD
Functioning Temperature Range 5℃-38℃ 5℃-38℃
Functioning Humidity Range 10%-90%RH 30%RH-90%RH
Commercial Use Greenhouse, basement, pharmaceutical industry, food industry, indoor swimming pool, etc. Greenhouse, basement, pharmaceutical industry, food industry, indoor swimming pool, etc.
Refrigerant R410A R410A
Filter Screen Nylon MERV11
Drainage Method 3/4NPT direct drainage 3/4NPT direct drainage
Fuselage Structure Sheet metal shell (ceiling mounted) Sheet metal shell (ceiling mounted)
Display Board LCD LCD
External control / Multiple choice
APP Yes Yes
WIFI Yes Yes
Timing Yes Yes
Dim (L x W x H) 1271*1040*835mm 1250*800*810mm
Net weight 201Kg 140kg
20 square cabinets 16 20
40 high cabinet 48 42
40 square cabinets 32 42

Videos of ZETA and PRO Dehumidifiers


Post time: Sep-22-2023
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